<?php
if(isset($_GET['modul']))
        $modul=$_GET['modul'];
else    
        $modul=null;

   switch($modul){
        case "lapkehoach":
            include("lapkehoach.php");
            break;
        case "xemkehoach":
            include("xemkehoach.php");
            break;
        case "xemlichhoc":
            include("xemlichhoc.php");
            break;
        case "chitiet_lich":
            include("chitiet_lich.php");
            break;
        case "canbo_lapkehoach":
            include("canbo_lapkehoach.php");
            break;
        case "lichday_giangvien":
            include("lichday_giangvien.php");
            break;
        case "lichhoc_donvi":
            include("lichhoc_donvi.php");
            break;
        case "lichthang":
            include("lichthang.php");
            break;
        default:
            include("lapkehoach.php");
            break;
     }

?>